题目内容：
Itisfootballtimeagain.Currently,thequalifyingroundsarebeingplayedtodecidewhichcountrieswillsendteamstothe2010WorldCup.Soccerisbecomingmoreandmorepopularonaworldwidescaleandthesequalifyinglegsarecausingmuchexcitement.Thegameispopularatclublevelaswell.Manyfansgoeveryweektosupporttheirteam,whethertheeventisahomeorawayone,hopingtogetaresult.Theyallhopeanattackinggame,withalotofgoalsbeingscored.Obviously,theydonotwanttoseeaboring,defensivematchwheretheplayersareaimlesslypassingtheballtoeachother.
Sadly,notalltheactionalwaystakesplaceontheground.Alltoofrequently,thereisactioninthestands,too.Footballsupporters,mostofwhomdeclaretheirloyaltybywearingtheirteam’scolours,intheformofshirts,arenotknownfortheirquietbehaviour.Theyareoftenverynoisy,shoutingnoisyencouragementtotheirteamandsingingdeafeningsongs.
Thereismuchrivalrybetweensupporters.Mostly,thisisgood-natured,buttroublecaneasilyarise.Fansgetangryiftheyfeelthatarefereehasmadeawrongdecision,perhapsgivingoneoftheirteamaredoryellowcardunfairly,orperhapsfailingtonoticeafoul(犯规)committedbyamemberoftheotherteam.
Whentroublebreaksoutinafootballcrowd,itcanbedifficulttocontrol.Stadiumofficialsoftenseattheopposingfansinseparatepartsofthegroundasaprecautionagainstfighting.However,preventingtroubleismoredifficultoutsidetheground.Intheworstcases,riotpolicehavetobecalledin.
Unfortunately,therearesomefanswhoenjoythisviolentaspectoffootball.Thesefootballhooligans(流氓)reallyenjoyarunningbattlewiththepolice,andcallupotherpeopletothrowstonesandbottlesatthem.Theyregardfootballnotasasport,butasanexcusefortroublemaking.Inevitably,theirbehaviourspoilsthereputationofthegame.Thequalifyingroundsareplayedto_______. A．attractsoccerfans
B．selectthebestteamsforthenextrounds
C．raisefundsfortheorganizers
D．decidewhichplayersarethebest
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